The Capacity Market has now been reinstated. If you had an agreement in the T4 2016 or 2017 auctions and you have withdrawn the credit cover or if you have conditionally Prequalified in T1 2019 you will be required to repost credit cover with the EMR Settlement Body by Friday 20 December. For Applications from the recent Prequalification round in October 2019 that are required to lodge credit cover with the EMR Settlement Body you will need to do this by Friday 15 November.
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T-1 Auction (Delivery Year: 2019-20) - Published Round Results

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Capacity Market Rule 5.5.18 Requires the Auctioneer to Announce and Publish the following information prior to the start of each Bidding Round:

  • ​​The Bidding Round Price Spread.
  • ​​​The Potential Clearing Capacity at the Bidding Round Price Floor​ for that Bidding Round.​​​​​​​​​​
  • Except in relation to the first Bidding Round, the Excess Capacity as at​ the start of the Bidding Round.​​​

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​The Bidding Round Price Spread will be £5/kW for each Bidding Round, as described in the Auction Guidelines.  The "Potential Clearing Capacity" is identical to the demand curve at a given price. The Excess Capacity is the excess of supply over demand at a particular price. The Excess Capacity is rounded to the nearest 1 GW, where the Excess Capacity falls below 1 GW, "Below 1 GW" will be displayed. Once the (unrounded) Excess Capacity falls below zero, the Auction will clear, subject to Capacity Market Rule 5.9.

These values are displayed in the Table below and charted in Figure 1. They will be updated approximately 5 minutes prior to the start of each Bidding Round. This coincides with the release of this information to Bidders.  

The Graph below shows the Rounded Excess Capacity added to the Potential Clearing Capacity, that is, the Remaining Capacity, or Supply. The supply will only be shown at a Bidding Round Pri​ce Cap/Floor, with a linear interpolation within a round.  Two curves will be shown, giving upper and lower bounds for the supply, given the rounding to the published Excess Capacity figures.

By Examining the Capacity Market Register, it can be verified that the Capacity Entering the Auction is 9420.357 MW De-Rated Capacity. This Capacity is the Supply at the Auction Price Cap in Figure 1 below.



The Auction has cleared in Round 15. The Clearing Price is £0.77 /kW/year.


The full Provisional Results Report is available here​.

The Provisional Results by CMUs are available in .xlsx  format.

The Auction Results will remain Provisional until 24th June 2019 (Auction Results Day).


The full Final Auction Results Report is available here​.

The Final Auction Results by CMUs are available in .xlsx format.



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Figure 1: Rounded Remaining Capacity






Round Number​​​​​​​​​​​
​​​Bidding Round Pric​​e Spre​ad​

(£/kW/yr)

P​otential Clearing Capacity at the Bidding Ro​​und P​r​ice Floor​ (MW)​Excess Capacity as at the start of the Bidding Round​ (MW)​
Round 1​​​75 - 70​​1892.308​-​​​
​Round 2​70 - 65​2084.615​7000
​Round 3​65 - 60​2276.923​​7000
​Round 4​60 - 55​2469.231​​6000
​Round 5​55 - 50​2661.538​​6000
​Round 6​50 - 45​2781.633​​6000
​Round 7​45 - 40​2883.673​​6000​​
​Round 8​40 - 35​2985.714​​6000
​Round 9​35 - 30​3087.755​6000
​Round 10​30 - 25​3189.796​​5000
​Round 11​25 - 20​3291.837​​5000
​Round 12​20 - 15​3393.878​5000
​Round 13​15 - 10​3495.918​​5000
​Round 14​10 - 5​3597.959​​5000
​Round 15​5 - 0​3700.000​​4000